Sucker-rod and the like.



J. HAHN.

SUUKER BOD AND THE LIKE.

APPLICATION FILED JUNE 11, 1912.

1,077,931 Patented NOV.4.1913.

STATES PATENT OFFICE.

JOHN HAHN, 013- LOS ANGELES, CALIFORNIA.

. SUQKER-ROD AND mini now-931 To alli whom it may concern Be it known that I, JOHN HAHN, a citizen of the United states residing; at Los Anwelded to the ends of metal intermediate.

bodies.

' tical, economical andeifective manner eitherby electric welding or gas welding.

' been raised to, a welding heat and then.

-In such structures the coupling membersare of greater cross-sectional area than the nod, bodies tobe welded thereto and an 0bjectof, thisinvention isto produce a rod of superior strength and to do this in a prac- An object of the invention is tofobtain maximum strength at the Welds.

In the process known as butt welding it hasbeen the practice hereto-fore to .make the. Welding stubs of the members to; be joined.

of, substantially the same cross sectional area and. tormahd the memberswere quickly forced togetherin consequence of which the. Welding operation was prolonged and re-v sulted. in raising the jaws and otherparts oi: the welding machine to a high tempera. tureand the effect onthe Weld was to prolatch. The parts are shown in the unforming the Weld so,that fracture was liable; I to occur at the weld.

I have discovered thatin order-t0 avoid crystallization of the metal at 'the Weldand toKsecure maximum strength thereof, the. welding portions of the members to be. joined must be raised to a high degree ofheat over less length of the members than dnce more or less crystallization of themetal has heretoforebeen customary; and this may be done by first turning on; the electric current, thenfslightly contacting, the. two .memf p p I formed integral with rod heads 2 which may berswith one another to cause'burning and flying away of the metal at the electric contact until the metal at the contact has slowly forcing the memloers together until-i the members have been brought to a welding.

temperaturefor an-inch,"more or lessjafter which the cu t s tur ed ofi an t e members are quickly forced yet more toward one.

another-to complete the weld;

Iii. he method, 'ust describedic era i dilate wrench seats 6, and is extended internall y oi the welding sleeve 1 to form, a

metalis; bITOlilgh-lt. to the-welding tempera:

Specification of Letters Patent.

body members shown. section on line indicated by wt, Fig. 1, of the indicate the direction of sight."

.tive provision is made the metal at the weld I Patented Nov. 4,1913.

Application filed June 11, 1912. Serial No. 703,076.

spreads and is forcedoutward, thus making large rough burs which must be removed by grinding or the like, thus adding to the cost of the product.

' 1 A further object is to avoid the foregoing difficulties and toprovide a neat joint.

Other objects and advantages may appear from the subjoined detail description. h The accompanying drawings illustrate the invention. Figure l is a fragmentary sidev View,

partly in axial section of. a sucker rod constructed'in accordance w th this invention,

there being two different forms of rolled Fig. 2 is an axial parts, before welding and coupling, from which the sucker rod of Fig. 1 is made. Fig.

-3 is an axial section of the upper weld in Fig, 1, Fig. 4 is an axial section of the lower weld in Fig. 1. Fig. 5 is an end view of one of the rod heads from line as, Fig. 2. 'Fig. 6 is across section on line m, Fig. 1. Fig.7 of a rod head and pipe in telescopic posiis a fragmentary axial sectional view tion preparatory for welding together. Fig. 8 is an axial section of the parts in-Fig. 7

after welding; Fig. 9 is a fragmentary sectional detail of the lower ro'd head and f coupling box' shown inFig. 1 provided with latched position in solid lines and in the latched position in dotted lines. j

In Figs. 3, 4 and 8 the dotted lines indicate sectional outlines of the parts previous towelding and the length of metal taken up .by the-welding operation. Figs. 5, 6, 7- and 9 are on..a larger, and Figs. 3, 4 and 8 are one smaller scale than Figs. 1 and 2; Arrows on the section lines of the various views The welding sleeves. 1' are preferably b edrop-forged or otherwise produced and which may be. coupled together in any deli'ng box l having an intermediate wrench, seat 5 extending part way around the circuinf e reiice of the box as clearly shown in ,Fi'g.-2.

" Each head 2 is provided with intermesiredinanner and inithe drawings are shown provided: with coupling pins 3 that are adapted to be threaded into a hollow cou such as 1s erably slightly wedge-shaped or conical and has its outer wall tapering inward toward 'theinner end of the channel. By reason of the channels.8,'thesleeves' 1 are adapted to itelesco pically reciye portions of the'mem- I fbers' whichffare to be wetded to them and to be welded around the ends of said members.

such members may be solid or tubular and anay be a rolledbody member'as shown in shown an d described inI'ny earlier application for sucker rod, filed January 18,

. tapered .portion 1912, Serial No; 67 2,003, or in the form of a vcylindrical rod1O such as is commonly used J r in connection with oil pumps and other de-- vices, or may 'be' a pipe or tubell as 1n F1gs.

7 and 8.

' During the welding operation the rolled body member and the stub upset inside the surrounding sleeve whichconfines the heat and the upset-metal, and the stub and themside of the sleeve weld with the body mem 'ber 'wh'ereverthe metal of the rolled body comes into contact therewith, andlthe upset metal so confined prevents crushing in and distortion .of the sleeve, thusforming an extremely strong weld and one that requires little or no grinding and smoothing up.

In preparing the sleeve the upper end thereof is'tapered and the upset metal entir'ely fills the forms a finish and avoids any obstructing corner at the joint,so that it will pass more readily through the liquid in the pumping operation.

The method of manipulation for gas welding will be understood from the foregoing.

j i To free the ends of the pin and box from .flui'd an'd non fluid particles-which may clog the coupling in practical use, the rod head 2 is provided with a longitudinal. slot 12 extending across the threads from the. end ofthe pin 3 into thepin base 13 to form an outlet 14 for particles that have collected in "the threads and are forced therefrominto the slot l2vwhenthe box and pin arerela tively turned.

In" Fig. -9 I have detailed the simple means forpreventin'g unscrewing of the pin and 1 box and for that purpose the slot 12 is termi- ;nated at the pin base 13by, a.'shou1der l5 and the slot is provided with a 'spring'latch, 16 having an outwardly bowed spring body 17 adapted to normally engage the pin-3 and the coupling box 4 and havlng a head 18 i which is bent substantially at ri ht angles to 'the'latch body and adapted to dated in the outlet la as shown in solid lines ZLCCOIIIIHO- end of .the sleeve. and the 3. The structure set forth when the coupling box and pin are relatively turned to seatthe end of the coupling box against the pin base 13. The coupling box 4 is provided with a notch 19 into which,

I after the box is screwed home, the latch head 18 may be driven or otherwise forced as shown in dotted lines in Fig.9, so as to rest against the shoulder 15 that'holds the spring latch in latching position to effectually preventrelative turning of the pin and box.

'FIt'is understood that I do not limit the invention to'the production of sucker rods, as the structure shown could be advantageo u'sly employed in other-arts than that relating to the pumping of wells, and the method can be applied wherever it is desired to weld together two members of different crosssectional areas or diflerent forms.

The structure thus formed comprises two members united by a welded joint, one. of said members being provided with a welding "stub, and means to prevent spreading of the weld beyond. the circumferential margins of the' members, so that a strong, clean weld devoid of external roughness unites the two' members into one homogeneous section that is as'strong'or stronger at the weld than at its other portions.

I claim r 1. The structure set-forth comprising two members of different cross-sectional areas united by a welded joint, one of said members having integral therewith a welding stub and a sleeve surrounding and spaced apart from thestub, said stub and the inside of the sleeve being welded with the other member.

.2. The structure set' forth comprisin two members of diiferent cross -sectional forms united by a welded joint, one of'said members having integral therewith a welds 7 ing stub and. a sleeve surrounding and spaced apart from the stub to form a channel. to receive and hold the upset metal of the stub an'dother member.

comprisin'g' two members united by a welded joint, one of I said members having integral therewith an internally tapered sleeve telescoped upon a portion. of the other member.

4." The structure set forth comprising. two members united by a welded joint, one of said members being provided internally with a channel in which portions of the other member are welded.

5. The structure set forth comprising two -;-rnembers united by a welded joint,,9n e ,of

said-members being provided with a welding stub of different cross-sectional form thanthe othermember, and a sleeve around the stub. f. a .6. The structure set forth comprising two membersumted by a welded joint, one of said members being provided with agweld ing stub and -means to prevent spreading of 'the ends of the body member.

the Weld beyond the circumferential margins of the members.

7. A sucker rod comprisinga body member having fiat blades united at the axis of the rod, and coupling heads welded over 8. A sucker rod comprising a ber, and a coupling head having an interhead, a body member having; flat b nally channeled sleeve welded around the end of the body member.

9. A sucker rod comprising a body member, and a coupling head having a sleeve provided With an internally tapered channel and Welded around the end of the body member.

10. A sucker rod comprising a body member, and a rod head telescopically welded inside and outside to the body member.

11. A sucker rod comprising a body member, a sleeve Welded to the body member and provided with a tapered portion outside of said body member.

125A rod head comprising a sleeve and a Welding stub inside of and shorter than the sleeve. a

13. A rod head comprising a sleeve, and

a Welding stub inside the sleeve.

14.1%. structure comprising a 'coupling ade's body mem welded to the coupling head, the edges of said fiat blades extending radially beyond the coupling head.

15. The structure set forth comprising two members; one of said members having blades, and the other member having a Weldin stub and having a sleeve surrounding an spaced apart from the stub to form a channel to receive and hold the upset metal of the blades.

16. A sucker rod comprising a flat-bladed body member, and a coupling member havinga sleeve and a Welding stub inside of the sleeve, said flat-bladed body member being united by a weld to the stub and sleeve of said coupling member.

17 A rodhead comprising an internally and externally tapered sleeve. 18. A rod head comprising a sleeve, and a stub'inside of the sleeve, said sleeve and stub being spaced apart to form a tapered channel therebetweeni In Witness whereof, I have hereunto set my hand at Los Angeles, California, this 5th day of June, 1912. I JOHNHAHN.

In presence of JAMES R. TOWNSEND, GEORGE H. HILES. 

